| Challenger - Prag | 05/09 09:00 | 26 | [212] Oriol Roca Batalla v Gauthier Onclin [282] | 6-7,7-6,2-6 | |
| Challenger - Prag | 05/06 11:35 | 25 | [241] Gijs Brouwer v Gauthier Onclin [282] | 2-6,2-6 | |
| Challenger - Ostrava | 04/24 08:00 | 26 | [205] Dennis Novak v Gauthier Onclin [276] | 7-6,6-2 | |
| Challenger - Ostrava | 04/23 09:45 | 25 | [265] Dimitar Kuzmanov v Gauthier Onclin [276] | 5-7,6-7 | |
| Challenger - Oeiras | 04/16 11:45 | 25 | [158] Jesper De Jong v Gauthier Onclin [269] | 6-3,6-2 | |
| Challenger - Oeiras | 04/15 09:30 | 19 | [245] Maks Kasnikowski v Gauthier Onclin [269] | 6-7,3-6 | |
| Challenger - Oeiras | 04/14 11:50 | 14 | [451] Miguel Damas v Gauthier Onclin [268] | 4-6,1-6 | |
| ITF - M25 - Saint Dizier | 03/31 13:00 | 29 | [262] Alibek Kachmazov v Gauthier Onclin [279] | 6-3,6-7,5-7 | |
| ITF - M25 - Saint Dizier | 03/30 15:10 | 28 | Buvaysar Gadamauri v Gauthier Onclin | 4-6,1-6 | |
| ITF - M25 - Saint Dizier | 03/29 14:00 | 27 | [423] Sascha Gueymard Wayenburg v Gauthier Onclin [279] | 6-3,3-6,2-6 | |
| ITF - M25 - Saint Dizier | 03/28 16:35 | 26 | Boris Fassbender v Gauthier Onclin | 3-6,3-6 | |
| ITF - M25 - Saint Dizier | 03/27 10:25 | 25 | Adan Freire Da Silva v Gauthier Onclin | 3-6,1-6 | |
| ITF - M25 - Toulouse | 03/22 14:10 | 27 | [279] Gauthier Onclin v Raphael Collignon [436] | 4-6,5-7 | |
| ITF - M25 - Toulouse | 03/21 15:40 | 26 | Gauthier Onclin v Alexey Vatutin | 6-3,4-6,6-2 | |
| ITF - M25 - Toulouse | 03/20 15:30 | 25 | [279] Gauthier Onclin v Antoine Hoang [495] | 6-1,6-2 | |
| ITF - M25 - Créteil | 03/15 10:55 | 27 | Alexey Vatutin v Gauthier Onclin | 6-3,6-1 | |
| ITF - M25 - Créteil | 03/14 10:00 | 26 | [169] Neil Oberleitner v Gauthier Onclin [264] | 4-6,6-2,2-6 | |
| ITF - M25 - Créteil | 03/12 18:05 | 25 | Adrien Gobat v Gauthier Onclin | 4-6,6-1,4-6 | |
| Challenger - Neu-Delhi | 02/27 14:15 | 25 | [267] Gauthier Onclin v Adam Walton [145] | 4-6,0-6 | |
| Challenger - Pune | 02/19 13:00 | 25 | [235] Tung-Lin Wu v Gauthier Onclin [252] | 7-6,6-7,6-3 | |
| Challenger - Bengaluru | 02/15 06:30 | 26 | [153] Adam Walton v Gauthier Onclin [252] | 6-2,6-2 | |
| Challenger - Bengaluru | 02/12 10:30 | 25 | [277] Giovanni Fonio v Gauthier Onclin [252] | 4-6,6-1,6-7 | |
| Challenger - Ottignies | 01/25 15:30 | 26 | [250] Leandro Riedi v Gauthier Onclin [218] | 7-5,6-3 | |
| Challenger - Ottignies | 01/24 16:10 | 25 | [184] Denis Yevseyev v Gauthier Onclin [218] | 4-6,4-6 | |
| Challenger - Nonthaburi | 01/18 05:55 | 26 | [218] Gauthier Onclin v Matteo Gigante [171] | 2-6,7-6,2-6 | |
| Challenger - Nonthaburi | 01/16 07:00 | 25 | [218] Gauthier Onclin v Clement Tabur [233] | 6-4,6-3 | |
| Australian Open | 01/10 05:15 | 14 | [103] Aleksandar Kovacevic v Gauthier Onclin [220] | 6-3,6-7,7-6 | |
| Challenger - Nonthaburi | 01/04 03:30 | 27 | [231] Gauthier Onclin v Lucas Pouille [329] | 3-6,2-6 | |
| Challenger - Nonthaburi | 01/03 03:00 | 26 | [251] Evgeny Donskoy v Gauthier Onclin [231] | 3-6,3-6 | |
| Challenger - Nonthaburi | 01/01 08:45 | 25 | [231] Gauthier Onclin v Yasutaka Uchiyama [269] | 7-5,6-2 |
Wikipedia - Gauthier Onclin
Gauthier Onclin (* 26. Februar 2001 in Lüttich) ist ein belgischer Tennisspieler.